public async Task Unfollow(Follower follower)
{
await _followerRepository.DeleteFollower(follower);
if (!_inMemoryStorage.UserFollowers.TryGetValue(follower.FollowedUserId, out List <int> followers))
{
followers = new List <int>();
_inMemoryStorage.UserFollowers[follower.FollowedUserId] = followers;
}
followers.Remove(follower.FollowingUserId);
if (followers.Count < Constants.CELEBRITY_FOLLOWERS_MIN_AMOUNT)
{
_inMemoryStorage.Celebrities.Remove(follower.FollowedUserId);
}
_feedManager.RemoveFromFeed(follower.FollowingUserId, follower.FollowedUserId);
}
